Issue 31080: Allow `logging.config.fileConfig` to accept kwargs

The function `logging.config.fileConfig` accepts `args` but it would be nice if it also accepted `kwargs`.

A simple patch seems to do it:

	diff --git a/Lib/logging/config.py b/Lib/logging/config.py
	index d692514..4672b48 100644
	--- a/Lib/logging/config.py
	+++ b/Lib/logging/config.py
	@@ -145,7 +145,9 @@ def _install_handlers(cp, formatters):
				 klass = _resolve(klass)
			 args = section["args"]
			 args = eval(args, vars(logging))
	-        h = klass(*args)
	+        kwargs = section.get("kwargs", '{}')
	+        kwargs = eval(kwargs, vars(logging))
	+        h = klass(*args, **kwargs)
			 if "level" in section:
				 level = section["level"]
				 h.setLevel(level)


Unless there are any objections I plan to submit a pull request. In my use case I have a Pyramid service which
uses `concurrent-log-handler` and it seems better to be able to name keyword args for file configuration.

This is the current state of my patch:

bpo-31080-fileconfig">https://github.com/python/cpython/compare/master...Preston-Landers:bpo-31080-fileconfig

It makes both `args` and `kwargs` optional in the config file. (Obviously, the actual handler may require args.)

Yes, seems reasonable, but don't change Misc/NEWS directly in your patch - this is now done using the "blurb" tool. Installed into a Python 3 environment using "pip install blurb".

New changeset 6ea56d2ebcae69257f8dd7af28c357b25bf394c3 by Vinay Sajip (Preston Landers) in branch 'master':
bpo-31080: Allowed logging.config.fileConfig() to accept both args and kwargs. (GH-2979)
https://github.com/python/cpython/commit/6ea56d2ebcae69257f8dd7af28c357b25bf394c3

A colleague pointed out that I used single quotes in the defaults where the line uses double quotes for another argument. I'm not sure if this is considered a problem but I could submit an update if it is.

No, that's OK - leave it as is, I'll consider it when next visiting the area.